Note 6 - Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Property, Plant and Equipment [Table Text Block]

	December 31
	2022		2021		Estimated Useful Lives (Years)
Land	$	730	$	730
Furniture and fixtures		259		265	5	-	10
Plant		10,095		10,457	20	-	40 or life of lease
Computer and software		450		452	3	-	5
Leasehold improvements		1,838		1,828	4	-	15 or life of lease
Machinery and equipment		15,703		15,115	5	-	15
Property and equipment, cost		29,075		28,847
Less accumulated depreciation		14,868		13,403
Property and equipment, net	$	14,207	$	15,444